.change_subject {
  width: 100vw;
  min-height: 100vh;
  background: #f8f8f8;
  .subject_top {
    border-bottom: 25px solid #efefef;
    .top {
      height: 500px;
      background: #fff;
      color: #666;
      padding: 80px 40px 0;
      box-sizing: border-box;
      section {
      display: flex;
      justify-content: space-between;

      }
      span {
        font-size: 42px;
      }
      .change {
        color: #2e57ff;
      }
    }
    h3 {
      font-size: 80px;
      font-weight: 700;
      color: #2e57ff;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 400px;
      i {
        font-size: 70px;
      }
    }
  }
  .subject_bottom {
    min-height: 100%;
    background: #fff;
    padding: 80px 40px 30px;
    box-sizing: border-box;
    
    h3 {
      font-size: 42px;
    }
    .sub_li {
      font-size: 50px;
      height: 120px;
      background: #f0f0f0;
      text-align: center;
      border-radius: 60px;
      line-height: 120px;
      margin: 30px 0;
    }
  }
}